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參數(shù)資料
| 型號： | RK80532PC041512 |
| 英文描述： | Microprocessor |
| 中文描述： | 微處理器 |
| 文件頁數(shù)： | 44/86頁 |
| 文件大?。?/td> | 882K |
| 代理商： | RK80532PC041512 |
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44
Datasheet
Intel
Pentium
III Processor with 512KB L2 Cache at 1.13GHz to 1.40GHz
7. A negative value for
ρ
indicates that the amplitude of ringback is above V
REF
. (i.e.,
φ
= -100 mV specifies the
signal cannot ringback below V
+ 100 mV).
8.
φ
and
ρ
: are measured relative to V
REF
.
α
: is measured relative to V
REF
+ 200 mV.
3.3
AGTL Signal Quality Specifications and Measurement
Guidelines
3.3.1
Overshoot/Undershoot Guidelines
Overshoot (or undershoot) is the absolute value of the maximum voltage above the nominal high
voltage or below V
SS
. The overshoot guideline limits transitions beyond V
CC
or V
SS
due to the fast
signal edge rates. The processor can be damaged by repeated overshoot events on 1.25 V or 2.5 V
tolerant buffers if the charge is large enough (i.e., if the overshoot is great enough). Determining
the impact of an overshoot/undershoot condition requires knowledge of the magnitude, the pulse
direction and the activity factor (AF). Permanent damage to the processor is the likely result of
excessive overshoot/undershoot. Violating the overshoot/undershoot guideline will also make
satisfying the ringback specification difficult.
When performing simulations to determine impact of overshoot and undershoot, ESD diodes must
be properly characterized. ESD protection diodes do not act as voltage clamps and will not provide
overshoot or undershoot protection. ESD diodes modeled within Intel I/O buffer models do not
clamp undershoot or overshoot and will yield correct simulation results. If other I/O buffer models
are being used to characterize the Intel Pentium
III
processor with 512KB L2 Cache
performance, care must be taken to ensure that ESD models do not clamp extreme voltage levels.
Intel I/O buffer models also contain I/O capacitance characterization. Therefore, removing the ESD
diodes from an I/O buffer model will impact results and may yield excessive overshoot/undershoot.
Figure 19. Low to High AGTL Receiver Ringback Tolerance
0.7V Clk Ref
Clock
Time
V
start
V
REF
- 0.2
V
REF
V
REF
+ 0.2
Note: High to low case is analogous
τ
α
δ
ρ
φ
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| RK80532PC041512 SL5YR | 制造商:Intel 功能描述: |
| RK80532PC041512S L66R | 制造商:Intel 功能描述:MPU Pentium? 4 Processor 64-Bit 0.13um 2GHz 478-Pin FCPGA2 |
| RK80532PC041512S L6PK | 制造商:Intel 功能描述:MPU Pentium? 4 Processor 64-Bit 0.13um 2GHz 478-Pin FCPGA2 制造商:Intel 功能描述:32BIT MPU 80532PC041512 2G 512 - Trays 制造商:Intel 功能描述:NORTHWOOD; MPU PENTIUM 4 NETBURST 64BIT 0.13UM 2GHZ - Trays |
| RK80532PC041512SL6 | 制造商:Intel 功能描述:ITLRK80532PC041512SL6PK MPU MM#850362 |
| RK80532PC041512SL6PK | 制造商:Intel 功能描述:ITLRK80532PC041512SL6PK MM# 850362 / 32 |
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